500 Pcs Grade 12.9 Black M3 M4 M5 Inner Hex Socket Head Cap Screws Assortment Set Kit

Made from High Quality Alloy Steel known for its dependable and rigid strength as well as its corrosion resistant quality. Unlike the regular carbon steels, alloy steel has improved properties such as strength, corrosion resistance, hardenability, and hot hardness. These qualities ensure hard-wearing making these screws and nuts virtually indestructible.
Can be used in almost all construction purposes from furniture repair and plumbing to woodwork and other DIY projects. These materials are also perfect for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur, even DIYers can opt to use it.
Drive Style: Hex Socket
Screw Type: M3 M4 M5 Hex Socket Head Cap Screws
Feature: Inner Hexagon Socket Screws
Screw Type: Set Screws
Dimensions: M3*16
Model Number: GTS-600400
Head Style: Round
DIY Supplies: Electrical
Size: 17.8*10.5*2.3cm
Color: black
Material: Alloy Steel
Package Contents:
30pcs * M3 * 20
30pcs * M3 * 16
30pcs * M3 * 12
30pcs * M3 * 8
120pcs * M3 Nuts
20pcs * M4 * 20
20pcs * M4 * 16
20pcs * M4 * 12
20pcs * M4 * 8
80pcs * M4 Nuts
10pcs * M5 * 20
10pcs * M5 * 16
15pcs * M5 * 12
15pcs * M5 * 8
50pcs * M5 Nuts
1 * box
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.